Glue-pot.



L. C. IVIALTBY.

GLUE POT.

APPLIcArloN FILED re.21. 1916.'

Patented May1,1917.

. I 1,224,764. l u

I I I Application led February 21,4 19216. v Serial No. 79,757.

To all 'whom it may'cncern: l

I citizen of the A`nited States,A residing at.

VILE'WIS C. MALTBY, 0F WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO THE STONE h STRAW COMPANY, OIE WSHINGTOTDISTRICT 0F COLUMBIA, CORPORATIONQF NEWl JERSEY. f

. .Be it known'that I, LEW s C. MLTBY, a

`-Washington, inv the District of Columbia,

have invented'certain new land useful Improvements in` Glue-Potafof which the fol- Y lowing is a specification.I

strip.

'My invention relates to an improvement in glue pots of the type more ,particularly adapted for applying a quick-setting glue4 evenly or uniformly. upon a rapidlymoving The present invention has to do more particularly with a removable scraper shoe-or wear-platel of special design 1 and form, which bearsat a -point upon the periphery of the glue-wheel, its curvature being on anarc larger than that ofthe wheel, wherebyytocinsure its eiiciencyv and effectiveness in accomplishing its purpose.

" A yIn the accompanying drawings j AFigure 1 is a plan view;

. Fig. 2 is an -enlarged longitudinal vertical section;

Fig. 3v is, a vertical transverse section on the line v3 3 of Fig. 2,v looking to the right f or in the direction of the' arrow;

Fig. 4 is a transverse sectional View through the hinged block;

Fig.- 5 is a bottom plan view of the latter; and---'.. i

Fig. 6 is a perspective'view.' of the removable scrapershoe or wear-plate. v

A, is vthe glue-pot, and 1 is a transverse shaft journaled in bearings 2, 2, inthe sides thereof, which will'be hereinafter termed the glue-wheel shaft, and upon which the glue-'wheel3is guided, the latter being lo" cated down well in the bed, so that the.

majorl portion of 'it' vis submerged in the glue.4 'The glue-wheel shaft 1 'isdriven in any convenient manner by a belt-,'gear, or other-mechanism not shown. V l

' Thezscraper -4 isf'removably secured to a hinged support v5, andthe latter is connected'by la vspring-hinge 6 toa bracket 7 held by bolts 8, 8, to the back of the gluepot, as shown in Figs. 2 and 3, the spring hinge actingto normally swing the support 5 with its scraper upwardly away from the glue-wheel 3. As a simple means of adl justin'g the support -5 with its wear-plate 'with respect 4to the glue-wheel 3, a bolt l0 is pivoted to the pillar 10f by means of a pin 10, whereby the bolt may be swung laterally in and out of the slot 5 'in the side j Specication ofLetters Patent.

GLUE-POT.

Patented May i, reir.

of the support (as shown in Fig. 1) and a wing-,nut 9l on the-bolt 10 is turned to regulate v the adjustment. By loosening the wing-nut and swinging the bolt out through vthe slot5, the support'is released and may be swung up out of the way. f It is returned to position-by pressing it down, and swinging the bolt' into the slot, and turning the 'wing-nut, to 4obtain the desired adjustment ofthe scraper-shoe or wear-plate, hereinaftery described, to the lperiphery of the wheel 3.

The scraper 4 is provided .withl dowelpins 11, 11, which extend through holes adapted toreceive them in the support 5,l

and the scraper is secured rigidly in place by bolts l2, 12, as shown in'Fig. 4.

The forwardedge of the scraper 4 has a notch. 13 corresponding in width to the thickness of" the. glue-wheel 3, it beingl in the recess 13, its widened portion l5 tting a corresponding recess, whereby it is held securely therein by friction, the support 5 above which the scraper 4`is bolted holding it in place. The forward face or surface 16 of this scraper-shoe or wear- .plate, as shown in Fig. 2, is curved in an arc greater than the periphery of the gluewheel 3, so that instead of fitting the latter,

ittouches it at a single point, or, more accurately speaking, line extending thereacross.

provide space beneath this point or line of contact to facilitate holding back of super- 'Y Huous glue carried along the periphery of the lne-Wheel 3, which in this manner is brus ed back much more effectively than inany other way, and more eectively' than it would be if the two surfaces corresponded in curvature and precisely fitted each other.

In fact,'when the 'face or surfacevl of the scraper-shoe or Wear-plate becomes worn to the point where it does iit the periphery, it

is then removed and replaced by anew one;

but b constructing it in this way, it is possible lzy an occasional adjustment of the nut 9 on the upper end of the pillar-10 to prolong the life or eiliciency of the scraper-shoe orwear-plate by throwing the Contact farther and lfarther toward the upper angle of the shoe or wear-plate, still getting the I clearance or space below the point or line of .contact with the periphery of the glue'-v Wheel until finally-the curvaturesA have become equal, when the scraper-shoe or wearplate is removed and replaced, as previously explained. ,Y A A In this manner, an excess or lack-of unil 'formity of the glue as applied to the strip Y .10 traveling in contact with the upper edge of .the glue-wheel is prevented.

The paper strips to form the tube, which this glue-potis designed to coat, aredrawn A l y-through two grooves in the plate 1.7, a tension-device 18 applying' the required tem sion to these strips through the adjustment of the thumb-screws 19. These tension-de vices are mounted on an arbor 20, which'is removably secured to the post 2l by means of the set-screw 22. The tension-devices can thus be removed with the arbor 20 at any time by unscrewing the set-screw 22. lt might be desirable .to apply glue to two or even more of the strips which are spun into the tube-or straw, a'nd this may be done by adding more glue-wheels or using a wider glue-wheel to accommodate two or even more strips. In that event, there would, of course, be as many grooves in the plate 17 as there are strips being spun into the straw. Two

y only are shown, but it is evident that more might be employed.

l claim: v 1. The combination with a rotatablewlieel,

v of a scraper-shoe or` wear-plate lhaving a curved faceI which coacts with the peripheral surface of the wheel, said contacting surfaces having the same general but non-concentric' CllIVeS.

4'0 2. The combination with a rotatable wheel,

of a scraper having a notched edge which stradnes and Substantiauy las the Sidesef.

' the wheel,and a wear-plate adjacent to the wheel having a curved face ada ted. to co- 4.5v act with the peripheral surfaces o the wheel, and -the` curvature of ywhich is non-cocentric i therewith. v

- 3.. The combination with a glue-pot anda glue-wheel rotatablymounted .therein,'o'f asupport mounted on the glue-pot, a spring hinge for pivotally connecting said support l thereto, ay scrapercarried by the support,

means for securing it thereto, and a wearplate removably secured to the scraper.

l v 4. The combination with 4a glue-pot and al v glue-wheel vrotatably mounted therein, of a scraper-shoe'orwear-plate adapted to vbe held in position to coperate with the periphery of the glue-wheel to remove su erglue-Wheel.

matizar.

riphery of the glue-wheel to remove su er- A -fluous glue therefrom, the operative sur ace of said shoe or wear-plate curved in an arc greater than. that of the periphery of the glue-wheel, and an adjustable support for said scraper-shoe or wear-plate.

6. The combination -with al glue-pot and a glue-wheel rotatably mounted therein, vof a scraper-shoe or wear-plate adapted to be held in position to coperate with the periphery of the glue-wheel to remove superuous glue therefrom, the operative surface of said shoe or wear-plate curved in an arc greater than that of the periphery of the glue-wheel, and a hinged spring-actuated support to'which said scraperfshoe or wearplate is detachably connected, and means for adjusting said support to regulate the position of the scraper-shoe or wear-plate with respect to the periphery of the'wheel.

' 7. The combination with a glue-pot and a I glue-wheel rotatably'mounted therein, of a support mounted on the glue-pot, a scraper detachably connected therewith, said scraper having a notched edge which straddles the wheel, and the sides of' which scrape the sides of the wheel, and a .scraper-shoe or wear-plate removably secured in said notch, the forward face of which is curved, the

t curvatures of the said face and periphery of the glue-wheel being non-concentric.

8. The combination with a glue-pot,.of a glue-whee1 rotatably supported therein, a

support mounted on the pot, a spring hinge for connecting saidsupport 'to the pot, the Y tension of which tends to swing` the support away from the latter, and means for resist'- 'ing the pressure of the spring and adjusting the support With the scraper to the Arequired position with respect to the periphery ofthe wheel. j i. K

9. The combination with a glue-pot, of a support vconnected therewith, a post carried by the support, an arbor removably -secured to the post, and tension-devicesA carried by the arbor for exerting a yielding pressure upon the support, `and between which parts the object to e glued is assed.

10.A The combination with a glue-pot, of a support-connected therewith, a post carried by the support, an arbor removably secured 4 to the post, and tension-devices carried -by -the arbor for exertingv a; yieldin pressure upon the support, and between w 'ch parts the object to be glued is passed, and means for regulating the amount of tension of said teision device. h f I vn testimony w ereo a x m signature.

Y LEWIS C. MSLTBY. 

